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Coral reefs destruction is a major concern in the backdrop of Climate Change. Consider
the statements regarding the coral reefs.
1) Coral reefs are example of a symbiotic relation between coral polyps and
photosynthetic algae.
2) Coral reefs are confined to deep waters.
3) Coral reefs are marine equivalent of tropical rain forest.
Which of the statement/s is/are true?

1, 2 only.
2, 3 only.
1, 3 only.
All the above.
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